Stream meander restoration design is often based on empirical equations or other empirical information. The appropriateness of these methods depends on the local physiographic and hydrologic setting and on the ability of the method to adequately describe the planform geometry. Freely formed meander planforms can be described by two equations for the meander arc length and sinuosity. Regional regression equations can be used to verify the use of free-form meander dimensions or as the basis for meander design or stabilization.